LED Drivers

Part Number	Description / PDF	Quantity
LDB-500LW MEAN WELL	LED DRVR CC BCK-BST 2-32V 500MA	76
ELG-150-54B MEAN WELL	LED DRVR CC/CV AC/DC 27-54V 2.8A	3
APV-12E-12 MEAN WELL	LED DRIVER CV AC/DC 12V 1A	0
ELG-200-C1050D2 MEAN WELL	LED DRIVERS POWER SUPPLIES 199.5	2
IDLV-25-48 MEAN WELL	I/P:90-295VAC O/P:+48V 0.52A	0
IDLC-25-1050 MEAN WELL	LED DRVR CC AC/DC 16.8-24V 1.05A	0
PLN-45-24 MEAN WELL	LED DRIVER CC AC/DC 18-24V 1.9A	0
XLG-200-H-AB MEAN WELL	200W LED POWER SUPPLY O/P +27~56	121
HBG-200-48A MEAN WELL	LED DVR CC/CV ACDC 28.8-48V 4.1A	16
LPL-18-24 MEAN WELL	LED DRIVER CV AC/DC 24V 750MA	9
HLP-40H-30 MEAN WELL	LED DRVR CC AC/DC 18-30V 1.34A	0
HBG-100-60 MEAN WELL	LED DRIVER CC AC/DC 36-60V 1.6A	0
HLG-100H-36 MEAN WELL	LED DVR CC/CV AC/DC 18-36V 2.65A	8
HLG-100H-42 MEAN WELL	LED DVR CC/CV AC/DC 21-42V 2.28A	0
HLN-80H-24B MEAN WELL	LED DRVR CC/CV AC/DC 24V 3.4A	0
HLN-40H-20A MEAN WELL	LED DRVR CC/CV AC/DC 20V 2A	30
PLN-45-36 MEAN WELL	LED DRVR CC AC/DC 27-36V 1.25A	6
HVGC-150-1050B MEAN WELL	LED DRVR CC AC/DC 15-143V 1.05A	7
HVGC-320-700A MEAN WELL	LED DRVR CC AC/DC 214-428V 700MA	35
PWM-120-24DA MEAN WELL	LED DRIVERS POWER SUPPLIES 120W	88

LED Drivers

1. Overview

LED drivers are electronic devices that regulate power to LED light sources. They convert AC mains voltage to DC current/voltage required by LEDs, ensuring stable light output and longevity. Modern lighting systems rely on LED drivers for energy efficiency (up to 95% efficiency), thermal management, and dimming control in applications ranging from consumer electronics to industrial lighting.

2. Main Types & Functional Classification

Type	Function Features	Application Examples
Constant Current (CC)	Provides fixed output current (e.g., 350mA/700mA), adjustable voltage range	High-power LED streetlights, architectural lighting
Constant Voltage (CV)	Maintains fixed output voltage (e.g., 12V/24V DC), variable current	LED strips, downlights, backlighting systems
Dimmable Drivers	Supports 0-10V/PWM/digital dimming protocols	Smart home lighting, theater stage lighting
Offline Drivers	Direct AC mains input without external transformer	Industrial LED floodlights, retrofit bulbs

3. Structure & Components

Typical construction includes: - Die-cast aluminum housing with IP65+ protection - Input EMI filter and bridge rectifier - Power factor correction (PFC) circuit - Isolated flyback/forward converter topology - Output current sensing resistor network - Thermal shutdown and overvoltage protection (OVP) circuits - Optional DALI/DMX communication interfaces

4. Key Technical Specifications

Parameter	Typical Range	Significance
Input Voltage	90-305V AC / 12-48V DC	Determines global compatibility
Output Current	100mA-2.5A	Matches LED string requirements
Efficiency	85-96%	Impacts energy consumption
Power Factor	0.85-0.99	Reduces grid reactive power
Operating Temp	-40 C to +85 C	Environmental reliability

5. Application Fields

Architectural Lighting: Bridge/tower accent lighting
Industrial: High-bay warehouse lighting systems
Automotive: Adaptive driving beam (ADB) headlights
Smart Cities: IoT-enabled streetlight networks
Medical: Surgical operating room lighting

6. Leading Manufacturers & Products

Manufacturer	Product Series	Key Features
Philips Xitanium	XF2G121	105W, 0-10V dimming, 5-year warranty
Osram OT	OTi DALI	DALI-2 certified, 16A output
Mean Well	HBL-40A	40W constant current, IP67 rating
TI LM	LM3445	Triac dimmable, 150W offline driver

7. Selection Guidelines

Match output current/voltage to LED specifications
Verify dimming compatibility (e.g., phase-cut vs. 0-10V)
Check environmental ratings (IP, temperature)
Confirm safety certifications (UL, CE, DLC)
Calculate system lifetime vs. driver MTBF

8. Industry Trends

Key developments include: - Integration with wireless protocols (Bluetooth Mesh, Zigbee) - 80Plus Titanium efficiency standards adoption - GaN/SiC semiconductor implementation - Predictive maintenance capabilities via IoT connectivity - EU Ecodesign Lot 20 compliance requirements